Research Article
Ultrasonic-Assisted Synthesis, Characterization, and Photocatalytic Application of SiO2@TiO2 Core-Shell Nanocomposite Particles
Figure 7
UV-visible absorption spectra of (a) SiO2 nanoparticles, (b) SiO2@TiO2 core-shell nanocomposite particles (SiO2-TiO2-4), and (c) pure TiO2 nanoparticles.